BitLocker 回復キーを見つける - Microsoft サポート
職場 または学校アカウントを使用してデバイスが組織にサインインしたことがある場合は、その組織のアカウントに回復キーを格納できます。直接アクセスできる場合や、回復キーにアクセスするには、その組織の it サポートに問い合わせる必要がある場合があります。
How to sign in to a Microsoft account - Microsoft Support
Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.
Applies To:
Microsoft 365 for home, Office for business, Outlook.com, Microsoft 365 for Mac, Microsoft 365 for Windows, Microsoft account dashboard, Microsoft Edge, Microsoft Office, Microsoft Teams, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Connect to a VPN in Windows - Microsoft Support
Whether it's for work or personal use, you can connect to a virtual private network (VPN) on your Windows device. A VPN connection can help provide a more secure connection and access to your company's network and the internet, for example, when you’re working from a coffee shop or similar public place.
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
Microsoft Bing help - Microsoft Support
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.